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Use the data below to answer the questions. Part B Substance AH; (kJ/mol) Calculate the enthalpy change, AH°| for the "expansion" of methane C(g) 718.4 CH(g)→C(g) + 4H(g) CF4(g) -679.9 Express your answer to one decimal place and include the appropriate units. CH (g) -74.8 View Available Hint(s) H(g) 217.94 HF(g) -268.61

Use the data below to answer the questions. Part B Substance AH; (kJ/mol) Calculate the enthalpy change, AH°| for the "expansion" of methane C(g) 718.4 CH(g)→C(g) + 4H(g) CF4(g) -679.9 Express your answer to one decimal place and include the appropriate units. CH (g) -74.8 View Available Hint(s) H(g) 217.94 HF(g) -268.61

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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<Chapter 6 Objectives + Enthalpy of Reaction: State and Stoichiometry 37 o Constants Periodi Use the data below to answer the questions. Part B Substance AH; (kJ/mol) Calculate the enthalpy change, AH | for the "expansion" of methane: C(g) 718.4 CH (g)→C(g) + 4H(g) CF1(g) -679.9 Express your answer to one decimal place and include the appropriate units. CH4 (g) -74.8 View Available Hint(s) H(g) 217.94 HF(g) -268.61 HA Keep in mind that the enthalpy of formation of an element in its standard state is zero. AH Submit acer
Transcribed Image Text:<Chapter 6 Objectives + Enthalpy of Reaction: State and Stoichiometry 37 o Constants Periodi Use the data below to answer the questions. Part B Substance AH; (kJ/mol) Calculate the enthalpy change, AH | for the "expansion" of methane: C(g) 718.4 CH (g)→C(g) + 4H(g) CF1(g) -679.9 Express your answer to one decimal place and include the appropriate units. CH4 (g) -74.8 View Available Hint(s) H(g) 217.94 HF(g) -268.61 HA Keep in mind that the enthalpy of formation of an element in its standard state is zero. AH Submit acer
mistry Assignments <Chapter 6 Objectives 37 of 42 * Enthalpy of Reaction: State and Stoichiometry Constants | Penodic Table Use the data below to answer the questions. Part C Substance AH; (kJ/mol) Calculate the enthalpy change, AH°, for the reverse of the formation of methane C(g) 718.4 CH4(g) C(s) + 2H2(g) CF4(g) - 679.9 Express your answer to one decimal place and include the appropriate units. CH4 (g) -74.8 • View Available Hint(s) H(g) 217.94 HF(g) -268.61 HA Keep in mind that the enthalpy of formation of an element in its standard state is zero. Value Units Submit acer
Transcribed Image Text:mistry Assignments <Chapter 6 Objectives 37 of 42 * Enthalpy of Reaction: State and Stoichiometry Constants | Penodic Table Use the data below to answer the questions. Part C Substance AH; (kJ/mol) Calculate the enthalpy change, AH°, for the reverse of the formation of methane C(g) 718.4 CH4(g) C(s) + 2H2(g) CF4(g) - 679.9 Express your answer to one decimal place and include the appropriate units. CH4 (g) -74.8 • View Available Hint(s) H(g) 217.94 HF(g) -268.61 HA Keep in mind that the enthalpy of formation of an element in its standard state is zero. Value Units Submit acer
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